Chemistry
JAMB 1978
Two gas cylinders contain ethylene (ethene) and acetylene respectively. One test which can be used to distinguish between them is by?
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A.
passing each gas through bromine water
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B.
passing each gas through dilute potassium permanganate solution
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C.
passing each gas through silver nitrate solution
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D.
treating each gas catalytically with excess hydrogen gas
Correct Answer: Option C
Explanation
Acetylene reacts with ammoniacal AgNO3 solution to form a white precipitate of silver acetylide (AgC-=Cag) but ethylene does not
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